code: def _extract_error_code(self, exception):
      return exception.errno
  
imports: import re
  from .base import BIT
  from .base import MySQLCompiler
  from .base import MySQLDialect
  from .base import MySQLIdentifierPreparer
  from ...None import util
label_desc: Use image node_id 6 for calling the MySQLDialect_mysqlconnector obj's underlying member method code with example usage: obj._extract_error_code(exception) and returns: exception